23 Jul '07 20:02>1 edit
This one is borrowed from a website I came across this morning:
A card sharp walks up to you and says "I'll bet you 20:1 that you can't flip through this entire shuffled deck of cards while saying the card ranks in order and not have the rank you're saying match the rank of the card you just flipped over" (for example, if you flip "K, 7, 7, J, 5" while saying "A, 2, 3, 4, 5" you match the 5's on the 5th flip and you lose the bet).
Is this a fair offer? If not, what should the odds be?
A card sharp walks up to you and says "I'll bet you 20:1 that you can't flip through this entire shuffled deck of cards while saying the card ranks in order and not have the rank you're saying match the rank of the card you just flipped over" (for example, if you flip "K, 7, 7, J, 5" while saying "A, 2, 3, 4, 5" you match the 5's on the 5th flip and you lose the bet).
Is this a fair offer? If not, what should the odds be?